HIGHVulnerability
CVE-2026-64562
In the Linux kernel, the following vulnerability has been resolved: KVM: nVMX: Hide shadow VMCS right after VMCLEAR free_nested() frees the shadow VMCS while vmcs01 still points to it. But because it is asynchronous with respect to loaded_vmcs_clear(), the vCPU might migrate before the pointer is cleared and __loaded_vmcs_clear() may then execute VMCLEAR. The VMCS needs to stay attached until its explicit VMCLEAR completes, but then it can be hidden and the page safely freed.
Properties
- severity
- HIGH
- score
- 8.8
- cve_id
- CVE-2026-64562
- vector
- CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H
- published_at
- 2026-08-04T07:16:31.093
- last_modified
- 2026-08-17T05:18:02.057
Related Entities (1)
DESCRIBED_BY (1)
→[Source]NVD
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